CN107152301A - A kind of leading explosion venting device of explosion-proof door of coal miine vertical shaft and explosion proof door - Google Patents
A kind of leading explosion venting device of explosion-proof door of coal miine vertical shaft and explosion proof door Download PDFInfo
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- CN107152301A CN107152301A CN201710610739.8A CN201710610739A CN107152301A CN 107152301 A CN107152301 A CN 107152301A CN 201710610739 A CN201710610739 A CN 201710610739A CN 107152301 A CN107152301 A CN 107152301A
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- explosion
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- pedestal
- proof door
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/16—Shaft covers
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of leading explosion venting device of explosion-proof door of coal miine vertical shaft and explosion proof door, including canopy-type door body and leading explosion venting device；Leading explosion venting device includes venting of dust explosion lid, pedestal, hinge seat, back-moving spring and inverted ventilation lock；Venting of dust explosion lid includes metal cover board, is bonded in the sealing block and cushion pad of plate face above and below metal cover board；Metal cover board side is provided with articulated joint, and articulated joint is hinged on hinge seat by hinge；The coil portion of back-moving spring is set on the hinge of hinge seat, and one pin is fixed in articulated joint, and another pin is overlapped on hinge seat；Inverted ventilation lock includes being placed equidistant some trapezoidal venting of dust explosion holes around center circumferential in the dead bolt on locked groove and metal cover board on pedestal, canopy-type door body, and the lower end of pedestal is weldingly fixed on the periphery in venting of dust explosion hole, and hinge seat is weldingly fixed in canopy-type door body.When carrying out upgrading to existing explosion proof door using the explosion venting device of the present invention, it is only necessary to canopy-type door body is transformed, quantities is small, expense is low.
Description
Technical field
The present invention relates to mining ventilation and safety technical field, more particularly to a kind of leading venting of dust explosion of explosion-proof door of coal miine vertical shaft
Device and explosion proof door, the explosion-proof performance for improving existing vertical ventilating shaft explosion-proof door.
Background technology
Explosion Door of Air Shaft is the important safety facility for protecting mine main ventilator, and its action principle is to utilize punching
Ripple rectilinear propagation properties are hit, the impact air-flow that well shooting of quickly releasing is produced, so as to reduce explosion wave to main fan
Destruction.
At present, China's coal-mine stand ventilating shaft generally use a kind of canopy-type explosion proof door, it by canopy-type door body, sealing oil groove,
Pulley yoke, counterweight etc. are constituted.This explosion proof door is introduced by the former Soviet Union earliest, and it was designed by former Wuhan Colliery Designing Institute in last century
60th, the establishment seventies and revision, examine and revise through former Ministry of Coal Industry and are designed as standard, is incorporated into《Coal special equipment atlas》, continue to use to
It is modern.Lot of accident confirms that the type explosion proof door has major defect, and outstanding behaviours is low antiknock ability, poor reliability, easily causes thing
Therefore extension.Explosion proof door stress in rising and dropping process is often unbalanced, and canopy-type door body is easily shifted, deflected,
Lower backwardness is difficult to self-resetting, causes largely to leak out, or even Air escape branch；When brisance is powerful, explosion proof door by punching fly and
Away from well head, underground main ventilation system can not be recovered for a long time, cause a large amount of underground distress personnel Poisoning chokes and injures and deaths, cause
Fault spread.
For the technological deficiency of existing vertical ventilating shaft explosion-proof door, the country proposes numerous Novel anti-explosion door of vertical air shaft, generally from
Be oriented to, buffering, it is spacing in terms of come strengthen explosion proof door explosion-resistance characteristic and reset reliability.Due to not yet forming mandatory technology
Standard, and construction upgrade cost is of a relatively high, Novel anti-explosion door of vertical air shaft promotes more difficult, there is major defect and safety is hidden
The existing vertical ventilating shaft explosion-proof door technology suffered from is still commonly used.
The content of the invention
It is existing present invention aims at the problem of presence for existing vertical ventilating shaft explosion-proof door and defect, proposing that one kind is additional to
Leading explosion venting device on vertical ventilating shaft explosion-proof door.When occurring explosion time, explosion venting device is opened and discharges explosion energy, subtracts in advance
The blast impulse that few explosion proof door is subject to, to strengthen its explosion-proof capabilities and security reliability.
The purpose of the present invention is achieved through the following technical solutions：
A kind of leading explosion venting device for explosion-proof door of coal miine vertical shaft, including it is venting of dust explosion lid, pedestal, hinge seat, back-moving spring, anti-
Wind is locked；The venting of dust explosion lid includes metal cover board, is bonded in the sealing block of metal cover board lower face and is bonded in metal cover board upper plate
The cushion pad in face；The pedestal is steel back taper cylinder, and the sealing block is the mesa-shaped body with pedestal close fit；The metal
Cover plate side is provided with articulated joint, and the articulated joint is hinged on hinge seat by hinge；The coil portion of the back-moving spring
It is set on the hinge of hinge seat, one pin is fixed in the articulated joint of the metal cover board, another pin is overlapped on hinge
On seat；The inverted ventilation lock is arranged on the dead bolt on metal cover board including the locked groove being arranged on pedestal and correspondence locked groove position.
Further, the metal cover board is light-high-strength metal material, and the sealing block is quality of rubber materials, described slow
Punching pad is made up of padded coaming.
Preferably, the cushion pad is plain cushion or wedge piece.
Further, the pedestal cross section is one kind in circular, trapezoidal, fan-shaped, and the inner side of the pedestal is light
Sliding curved surface, the pedestal upper end is provided with the brim of a hat shape support ring.
Around umbrella in a kind of explosion proof door containing above-mentioned leading explosion venting device, in addition to canopy-type door body, the canopy-type door body
Lid formula door body center circumferential is placed equidistant some venting of dust explosion holes, and the lower end of the pedestal of the leading explosion venting device is weldingly fixed on venting of dust explosion
The periphery in hole, the hinge seat of the leading explosion venting device is weldingly fixed in canopy-type door body.
Further, the one kind for being shaped as the regular shape such as circular, trapezoidal, fan-shaped in the venting of dust explosion hole, the pedestal
Shape of cross section is consistent with the shape in venting of dust explosion hole.
The present invention compared with the prior art, with advantages below and beneficial effect：
1st, by installing explosion venting device additional in existing vertical ventilating shaft explosion-proof door canopy-type door body, large and small valve collaboration venting of dust explosion system is constituted
System, is released blast pressure and energy in advance by the little moveable door i.e. explosion venting device that antiknock ability is strong and is easy to repair, anti-to reduce
Quick-fried ability is weak and is difficult to the blast impulse that the i.e. existing vertical ventilating shaft explosion-proof door of big valve is subject to repaired, and is prevented with strengthening existing vertical ventilating shaft
The explosion-proof capabilities and security reliability of quick-fried door.
2nd, explosion venting device uses clam shell design, simple in construction, and rationally, itself capability of antidetonance preferably, is difficult venting of dust explosion mode
By impact failure.When brisance is big, when part explosion venting device is damaged, emergency disposal measure is simple and easy to apply.
3rd, explosion venting device pedestal（2）And sealing block（102）Using round platform/terrace with edge structure, it is easy to ensure that device resets and close
Seal quality.In the presence of ventilation negative pressure, the characteristics of explosion venting device has self-locking seal, i.e. negative pressure are bigger, seal tighter.
4th, explosion venting device venting of dust explosion lid（1）In back-moving spring（4）With automatically reset under Action of Gravity Field, inverted ventilation lock（5）In ventilation
It can voluntarily be locked under suction function, be not required to manual intervention, the original operation sequence for setting up explosion proof door after leading explosion venting device is constant.
When carrying out upgrading to existing explosion proof door using the explosion venting device of the present invention, it is only necessary to which canopy-type door body is changed
Make, quantities is small, expense is low.
Brief description of the drawings
Fig. 1 is the structural representation of circular explosion venting device of the invention.
Fig. 2 is the structural representation of trapezoidal explosion venting device of the invention.
Fig. 3 is the structural representation of venting of dust explosion cover in the present invention.
Fig. 4 is the mounting arrangements schematic diagram of the circular explosion venting device closure state of the present invention.
Fig. 5 is the mounting arrangements schematic diagram of the circular explosion venting device opening of the present invention.
Fig. 6 is the mounting arrangements schematic diagram of the trapezoidal explosion venting device closure state of the present invention.
Fig. 7 is the mounting arrangements schematic diagram of the trapezoidal explosion venting device opening of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
Embodiment one
As shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, a kind of leading explosion venting device of explosion-proof door of coal miine vertical shaft and explosion proof door, including canopy
Formula door body（M）With leading explosion venting device；
The leading explosion venting device includes venting of dust explosion lid（1）, pedestal（2）, hinge seat（3）, back-moving spring（4）, inverted ventilation lock（5）；Institute
State venting of dust explosion lid（1）Including metal cover board（101）, be bonded in metal cover board（101）The sealing block of lower face（102）Be bonded in gold
Belong to cover plate（101）The cushion pad of upper face（103）；The pedestal（2）For steel back taper cylinder, the sealing block（102）For with
Pedestal（2）The mesa-shaped body of close fit；The metal cover board（101）Side is provided with articulated joint（105）, the articulated joint
（105）Hinge seat is hinged on by hinge（3）On；The back-moving spring（4）Coil portion be set on hinge seat（3）Hinge
On, one pin is fixed on the metal cover board（101）Articulated joint（105）On, another pin is overlapped on hinge seat（3）On；
The inverted ventilation lock（5）Including being arranged on pedestal（2）On locked groove（502）With correspondence locked groove（502）Position is arranged on metal cover board
（101）On dead bolt（501）, the metal cover board（101）For light-high-strength metal material, the sealing block（102）For rubber
Glue material matter, the cushion pad（103）It is made up of padded coaming, the cushion pad（103）For plain cushion or wedge piece, the pedestal
（2）Inner side be smooth surface, the pedestal（2）Upper end is provided with the brim of a hat shape support ring.
The canopy-type door body（M）On around canopy-type door body（M）Center circumferential is placed equidistant some circular venting of dust explosion holes, described
The pedestal of leading explosion venting device（2）Lower end be weldingly fixed on the periphery in venting of dust explosion hole, the hinge seat of the leading explosion venting device（3）
It is weldingly fixed on canopy-type door body（M）On, the pedestal（2）Shape of cross section is circle.
Embodiment two
As shown in Fig. 2, Fig. 3, Fig. 6 and Fig. 7, a kind of leading explosion venting device of explosion-proof door of coal miine vertical shaft and explosion proof door, including canopy
Formula door body（M）With leading explosion venting device；
The leading explosion venting device includes venting of dust explosion lid（1）, pedestal（2）, hinge seat（3）, back-moving spring（4）, inverted ventilation lock（5）；Institute
State venting of dust explosion lid（1）Including metal cover board（101）, be bonded in metal cover board（101）The sealing block of lower face（102）Be bonded in gold
Belong to cover plate（101）The cushion pad of upper face（103）；The pedestal（2）For steel back taper cylinder, the sealing block（102）For with
Pedestal（2）The mesa-shaped body of close fit；The metal cover board（101）Side is provided with articulated joint（105）, the articulated joint
（105）Hinge seat is hinged on by hinge（3）On；The back-moving spring（4）Coil portion be set on hinge seat（3）Hinge
On, one pin is fixed on the metal cover board（101）Articulated joint（105）On, another pin is overlapped on hinge seat（3）On；
The inverted ventilation lock（5）Including being arranged on pedestal（2）On locked groove（502）With correspondence locked groove（502）Position is arranged on metal cover board
（101）On dead bolt（501）, the metal cover board（101）For light-high-strength metal material, the sealing block（102）For rubber
Glue material matter, the cushion pad（103）It is made up of padded coaming, the cushion pad（103）For plain cushion or wedge piece, the pedestal
（2）Inner side be smooth surface, the pedestal（2）Upper end is provided with the brim of a hat shape support ring.
The canopy-type door body（M）On around canopy-type door body（M）Center circumferential is placed equidistant some trapezoidal venting of dust explosion holes, described
The pedestal of leading explosion venting device（2）Lower end be weldingly fixed on the periphery in venting of dust explosion hole, the hinge seat of the leading explosion venting device（3）
It is weldingly fixed on canopy-type door body（M）On, the pedestal（2）Shape of cross section is trapezoidal.
It is explosion-proof in existing canopy-type when being transformed using the leading explosion venting device of the present invention existing canopy-type explosion proof door
The door body of door（M）On, edge and door body（M）Some venting of dust explosion holes are equidistantly excavated on concentric circumference.The number of openings and perforate are total
Area is according to door body（M）Structure snd size determine；Hole shape can be circular, trapezoidal etc.；Position of opening avoids door body（M）'s
Supporting member.By explosion venting device pedestal（2）Door body is welded on along venting of dust explosion hole edge（M）On, then in pedestal（2）Nearby welded and installed
Hinge seat（3）, then load onto venting of dust explosion lid（1）And back-moving spring（4）, that is, complete the installation of explosion venting device.
Under normal ventilation state, explosion venting device is in closure state, the venting of dust explosion lid under ventilation suction function（1）Sealing
Block（102）Mutually extrude, contact closely knit so that explosion venting device is tightly air tight with base internal wall.In normal ventilation, inverted ventilation lock
（5）In normal lock status.When mine needs to occur inverted ventilation, because explosion venting device is in locking state, therefore it is not required to fill venting of dust explosion
Put and carry out extra inverted ventilation preparation work.
When explosion time occurs for underground, explosion wave washes the venting of dust explosion lid of explosion venting device open first（1）, blast impulse air-flow from
Venting of dust explosion hole sprays, explosion proof door door body（M）The very fast decline of blast pressure being subject to, blast pressure and explosion energy are released.Together
When, explosion proof door door body（M）Also gradually opened under Blast Shock.In explosion proof door door body（M）In the most of the time of unlatching,
Venting of dust explosion hole is in open state, and quite a few explosion energy is discharged by venting of dust explosion hole so that the blast that explosion proof door door body M is subject to
Impact greatly weakens.After blast, the venting of dust explosion lid of explosion venting device（1）In back-moving spring（4）Under Action of Gravity Field, cover and let out again
Blast hole.Treat explosion proof door door body（M）Reset and recover after ventilation, under ventilation suction function, venting of dust explosion lid（1）Further obturage venting of dust explosion
Hole, while inverted ventilation is locked（5）Also auto lock again.When explosion time, explosion venting device and explosion proof door door body occur again for underground（M）Weight
Multiple above-mentioned venting of dust explosion and homing action so that explosion venting device can be subjected to continuous blast impulse.
When explosion venting device is damaged in blast, it can be buckled in provisional serum cap on pedestal and block venting of dust explosion hole, Huo Zheyong
The lay-by materials such as aluminium foil cloth are blocked, and after underground dangerous situation is excluded, then change impaired explosion venting device.
In summary, by the description of the present embodiment, those skilled in the art can be made preferably to implement this programme.
Claims (7)
1. a kind of leading explosion venting device for explosion-proof door of coal miine vertical shaft, it is characterised in that：Including venting of dust explosion lid（1）, pedestal
（2）, hinge seat（3）, back-moving spring（4）, inverted ventilation lock（5）；
The venting of dust explosion lid（1）Including metal cover board（101）, be bonded in metal cover board（101）The sealing block of lower face（102）With it is viscous
It is connected on metal cover board（101）The cushion pad of upper face（103）；
The pedestal（2）For steel back taper cylinder, the sealing block（102）For with pedestal（2）The mesa-shaped body of close fit；
The metal cover board（101）Side is provided with articulated joint（105）, the articulated joint（105）Hinge is hinged on by hinge
Seat（3）On；
The back-moving spring（4）Coil portion be set on hinge seat（3）Hinge on, one pin is fixed on the metal cover
Plate（101）Articulated joint（105）On, another pin is overlapped on hinge seat（3）On；
The inverted ventilation lock（5）Including being arranged on pedestal（2）On locked groove（502）With correspondence locked groove（502）Position is arranged on metal
Cover plate（101）On dead bolt（501）.
2. a kind of leading explosion venting device for explosion-proof door of coal miine vertical shaft according to claim 1, it is characterised in that：Institute
State metal cover board（101）For light-high-strength metal material, the sealing block（102）For quality of rubber materials, the cushion pad（103）
It is made up of padded coaming.
3. a kind of leading explosion venting device for explosion-proof door of coal miine vertical shaft according to claim 1 or 2, its feature exists
In：The cushion pad（103）For plain cushion or wedge piece.
4. a kind of leading explosion venting device for explosion-proof door of coal miine vertical shaft according to claim 1, it is characterised in that：Institute
State pedestal（2）Cross section is one kind in the regular shape such as circular, trapezoidal, fan-shaped, the pedestal（2）Inner side be smooth song
Face.
5. a kind of leading explosion venting device for explosion-proof door of coal miine vertical shaft according to claim 1 or 4, its feature exists
In：The pedestal（2）Upper end is provided with the brim of a hat shape support ring（104）.
6. a kind of explosion proof door of the leading explosion venting device containing described in Claims 1 to 55, in addition to canopy-type door body（M）, its feature
It is：The canopy-type door body（M）On around canopy-type door body（M）Center circumferential is placed equidistant some venting of dust explosion holes, described to let out in advance
The pedestal of quick-fried device（2）Lower end be weldingly fixed on the periphery in venting of dust explosion hole, the hinge seat of the leading explosion venting device（3）Welding is solid
It is scheduled on canopy-type door body（M）On.
7. explosion proof door according to claim 6, it is characterised in that：Being shaped as the venting of dust explosion hole is circular, trapezoidal, fan-shaped etc.
One kind of regular shape, the pedestal（2）Shape of cross section it is consistent with the shape in venting of dust explosion hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610739.8A CN107152301B (en) | 2017-07-25 | 2017-07-25 | A kind of leading explosion venting device of explosion-proof door of coal miine vertical shaft and explosion proof door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610739.8A CN107152301B (en) | 2017-07-25 | 2017-07-25 | A kind of leading explosion venting device of explosion-proof door of coal miine vertical shaft and explosion proof door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107152301A true CN107152301A (en) | 2017-09-12 |
| CN107152301B CN107152301B (en) | 2019-05-03 |
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ID=59796987
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|---|---|---|---|
| CN201710610739.8A Active CN107152301B (en) | 2017-07-25 | 2017-07-25 | A kind of leading explosion venting device of explosion-proof door of coal miine vertical shaft and explosion proof door |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533306A (en) * | 2018-03-23 | 2018-09-14 | 山东省田庄煤矿有限公司 | A kind of explosion-proof cover locking device of vertical ventilating shaft |
| CN110067587A (en) * | 2019-05-28 | 2019-07-30 | 河南理工大学 | Self-resetting vertical shaft explosion door system and explosion-proof method |
| CN110671027A (en) * | 2019-09-27 | 2020-01-10 | 河南理工大学 | Energy intercepting type mine explosion wave reduction device |
| CN111810217A (en) * | 2020-07-22 | 2020-10-23 | 河南理工大学 | Auxiliary explosion-proof system for coal mine air shaft |
| CN112901242A (en) * | 2021-03-13 | 2021-06-04 | 河南理工大学 | A supplementary explosion-proof door system for colliery air shaft wind tunnel |
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| CN102733731A (en) * | 2012-07-12 | 2012-10-17 | 徐州中矿奥特麦科技有限公司 | Automatic on-and-off gravity type anti-explosion door |
| CN202756005U (en) * | 2012-08-17 | 2013-02-27 | 扬州鑫生科技发展有限公司 | Safe explosion-proof decompression type fan cover |
| CN202946182U (en) * | 2012-12-14 | 2013-05-22 | 中煤科工集团重庆研究院 | Mine pressure relief damper with enhanced air impact resistance |
| CN103306704A (en) * | 2013-06-09 | 2013-09-18 | 山东科技大学 | Vertical ventilating shaft anti-explosion door and method for relieving pressure safely and performing ventilation quickly by using door |
| CN103953382A (en) * | 2014-04-22 | 2014-07-30 | 扬州市江隆矿业设备有限公司 | Pressure releasing automatic reset air shaft anti-explosion cover |
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| DE1086651B (en) * | 1958-01-30 | 1960-08-11 | Siemag Maschinen U Stahlbau Ne | Manhole cover that can be raised and lowered again for mine shafts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108533306A (en) * | 2018-03-23 | 2018-09-14 | 山东省田庄煤矿有限公司 | A kind of explosion-proof cover locking device of vertical ventilating shaft |
| CN110067587A (en) * | 2019-05-28 | 2019-07-30 | 河南理工大学 | Self-resetting vertical shaft explosion door system and explosion-proof method |
| CN110067587B (en) * | 2019-05-28 | 2023-08-15 | 河南理工大学 | Vertical shaft explosion door system capable of automatically resetting and explosion-proof method |
| CN110671027A (en) * | 2019-09-27 | 2020-01-10 | 河南理工大学 | Energy intercepting type mine explosion wave reduction device |
| CN111810217A (en) * | 2020-07-22 | 2020-10-23 | 河南理工大学 | Auxiliary explosion-proof system for coal mine air shaft |
| CN112901242A (en) * | 2021-03-13 | 2021-06-04 | 河南理工大学 | A supplementary explosion-proof door system for colliery air shaft wind tunnel |
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|---|---|
| CN107152301B (en) | 2019-05-03 |
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